From: Matthew Wilcox <matthew@wil.cx>
To: Raz Ben-Yehuda <razb@bitband.com>
Cc: linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org
Subject: Re: Intel X25-M MLC SSD benchmarks
Date: Wed, 10 Dec 2008 14:39:37 -0700 [thread overview]
Message-ID: <20081210213937.GC25548@parisc-linux.org> (raw)
In-Reply-To: <83CA05F64804AF43B8F733C4ABDFAA51022D04D4@mail1.bitband.com>
On Wed, Dec 10, 2008 at 11:15:12PM +0200, Raz Ben-Yehuda wrote:
> Hello
> I am wondering if anyone tried Intel new disks. I benchmark them and I
> am a bit confused.
> According to the spec a single disk should provide 70MB/s write and 250
> MB/s read. Reads are ok. I am reaching this number, but writes are bad.
> With writes I am getting 20MB/s.
> I am using a dd for the test, and a deadline-line scheduler.
What command exactly are you using, and have you tried using the no-op
elevator instead of deadline? Also, what controller is it hooked up to?
--
Matthew Wilcox Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
next prev parent reply other threads:[~2008-12-10 21:39 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <AclbDGOLOskD7sbdTh+kIygApfPXZg==>
2008-12-10 21:15 ` Intel X25-M MLC SSD benchmarks Raz Ben-Yehuda
2008-12-10 21:39 ` Matthew Wilcox [this message]
2008-12-10 22:12 ` Raz Ben-Yehuda
2008-12-11 3:44 ` Matthew Wilcox
2008-12-12 3:27 ` Eric D. Mudama
2008-12-12 4:55 ` Eric D. Mudama
2008-12-12 7:15 ` Bart Van Assche
2008-12-12 14:25 ` Eric D. Mudama
2008-12-12 15:20 ` Matthew Wilcox
2008-12-12 15:55 ` Eric D. Mudama
2008-12-12 17:12 ` Raz Ben-Yehuda
2008-12-12 12:15 ` Matthew Wilcox
2008-12-12 12:21 ` Raz Ben-Yehuda
2008-12-12 18:10 ` Greg Freemyer
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